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Toughened Glass

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The securing of the glass is the thermal process of its heating up to 700-740°C and of fast cooling at the room temperature – through which the material becomes 5 times harder, without losing its elasticity. An important quality of the secured glass is its behavior at the time when it is broken; compared to a normal glass, the secured glass is breaking in small pieces, not in big and sharp ones. It is used when the resistance at mechanical shocks, thermal resistance and protection against the risk of breaking is desired. An essential element for the decrease of the probability that the glass should break during the securing process is the careful processing of the glass edges. It is well known that the faulty processing of the edge of the glass that is the subject of the securing process equally affects the quality and the mechanical properties of the finite product.

The secured glass is used at the glass walls, thermopane windows or laminated windows, etc. – especially for the applications needing the following:

  • A better resistance to the mechanical shocks (glass doors, point-fix glass panels, as well as glass banisters, etc.).
  • A better resistance at the thermal shock (the glass that is subject to intensive sun rays or are mounted close to some heating sources such as the plating with colored glass, etc.).
  • A better protection against the risk of breaking, respectively the decrease of the risk of injury.

Nevertheless, there is still a risk of the secured glass, respectively the risk of accidental or spontaneous breaking of the glass without being subject to certain extreme shocks. This risk can be removed through a test called HEAT-SOAK TREATMENT. The nickel sulfide inclusions usually included in any glass, increase their volume under high temperatures. The tension balance inside the secured glass is changed in these places and the so-called spontaneous breaking occur. For the minimization of this risk, the additional treatment through the ‘heat soak’ is advised – in case of the windows with applications with a high hazard potential for people. Thus, after the securing of the glass, it is introduced in the stove and kept at an average constant temperature of about 290 Celsius degrees for 4-8 hours, while the window with risk is breaking.

In order to obtain the quality products, Transparent Design is investing in modern machines, manufactured by the reputable professionals in the field. Thus, in 2016, our glass company procured an European RC 200 VORTEX PLUS, TAMGLASS make securing furnace – the worldwide leader in the field. The furnace benefits from a new uniformed and controlled heating technology of the glass, respectively a performant convection system which is seen both in the quality of the secured glass (plain and stainless), and in the productivity of the stove, in case of the security both of the float glass and of the lowe 0.04 / 0.02 or ultraclear glass.

The glass securing technology complies with the European standards EN 12150 and EN 1863 which provides the processing of the float glass thick of 4 to 19 mm and of size 4800×2400 mm, as well as of the special glass such as Low-E and reflexive glass.

In May 2020, Transparent Design received the certification BSI Kitemark™ BS EN 12150 – thermal secured glass:

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About Us

Glass has recently become an interior design element used and appreciated because of its qualities. Elegant and translucent, glass is the perfect solution not only for residential applications, but also for commercial office buildings, adding style and sophistication to a modern space.

Glass walls, glass doors, bespoke mirrors, bespoke shower enclosures, colored glass cladding, glass for stairs and balustrades, these are just some of the extremely varied solutions that we can offer.

Şoseaua Olteniţei 208
Popești-Leordeni 077160
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